13 amp vs 32 amp hot tubs
A 13 amp hot tub plugs into an outdoor socket; a 32 amp tub is hardwired on its own circuit by an electrician. Of the 115 hot tubs in our UK listings, 45 state the current they need.
By power supply
| Group | Listings | Median price | Median heater (stated) | Lowest price |
|---|---|---|---|---|
| 13 A plug | 9 | £4,899 | 2 kW (3) | MSpa Oslo Aero Plus 6 Person Portable Hot Tub, £2,395 at Balance Recovery |
| 15 to 20 A | 5 | £7,534 | 2 kW (5) | Cove Impulse | 4-Person HSG282 Compliant Holiday Park Hot Tub, £5,344 at Balance Recovery |
| 30 A and more | 31 | £7,995 | 3 kW (28) | Equinox | 7-Seat High Power 32A Hot Tub, £6,099 at Steam & Oak |
| Not stated | 70 | £4,829 | 3 kW (41) | Atlantic | 4/6-Person Inflatable Hot Tub | Integrated Heater | UKCA, £246 at Wave Spas |
What an hour of heating costs
At the Ofgem price cap of 26.11p per kWh, one hour of a heater at full power costs:
- 2 kW: £0.52
- 3 kW: £0.78
- 6 kW: £1.57
A heater does not run all the time; how long it runs depends on the insulation, the cover, the weather and how warm you keep the water. Work it out with your own numbers: running cost calculator. Filter tubs by supply: hot tub finder.